2563375 has 8 divisors (see below), whose sum is σ = 3199248. Its totient is φ = 2050600.

The previous prime is 2563369. The next prime is 2563381. The reversal of 2563375 is 5733652.

It is an interprime number because it is at equal distance from previous prime (2563369) and next prime (2563381).

It is not a de Polignac number, because 2563375 - 2³ = 2563367 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁷ + 6⁵ + 3³ + 3³ + 7 + 5⁹ .

It is a Duffinian number.

2563375 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10129 + ... + 10378.

It is an arithmetic number, because the mean of its divisors is an integer number (399906).

2^2563375 is an apocalyptic number.

2563375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2563375 is a deficient number, since it is larger than the sum of its proper divisors (635873).

2563375 is an equidigital number, since it uses as much as digits as its factorization.

2563375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20522 (or 20512 counting only the distinct ones).

The product of its digits is 18900, while the sum is 31.

The square root of 2563375 is about 1601.0543401147. The cubic root of 2563375 is about 136.8581656770.

The spelling of 2563375 in words is "two million, five hundred sixty-three thousand, three hundred seventy-five".